import java.time.LocalDate; // 或者 java.util.Date

public class Article {
    private String title;
    private String url;
    // 新增字段
    private String author;
    private LocalDate publishDate; // 推荐使用 Java 8 的 LocalDate，也可以用 String 或 Date

    // 构造函数
    public Article(String title, String url, String author, LocalDate publishDate) {
        this.title = title;
        this.url = url;
        this.author = author;
        this.publishDate = publishDate;
    }

    // Getter 和 Setter 方法
    public String getAuthor() {
        return author;
    }

    public void setAuthor(String author) {
        this.author = author;
    }

    public LocalDate getPublishDate() {
        return publishDate;
    }

    public void setPublishDate(LocalDate publishDate) {
        this.publishDate = publishDate;
    }

    // 记得更新 toString() 方法以便在控制台打印时能看到新字段
    @Override
    public String toString() {
        return "Article{" +
                "title='" + title + '\'' +
                ", url='" + url + '\'' +
                ", author='" + author + '\'' +
                ", publishDate=" + publishDate +
                '}';
    }
}